<?php
/**
 * Divi 5: the "SR Anywhere" module for Divi's Visual Builder (plan §6; Divi 4 places modules with the shortcode).
 *
 * Divi's own classes are only touched inside its hooks, so nothing loads without Divi 5.
 *
 * @package SRAnywhere
 */

namespace SRAnywhere;

defined( 'ABSPATH' ) || exit;

/**
 * Registers the module and the Visual Builder's script.
 */
final class Divi {

	const SCRIPT = 'sranywhere-divi';

	/**
	 * Hooks into Divi 5.
	 */
	public static function boot() {
		add_action( 'divi_module_library_modules_dependency_tree', array( self::class, 'register' ) );
		add_action( 'divi_visual_builder_assets_before_enqueue_scripts', array( self::class, 'builder_assets' ) );
	}

	/**
	 * Adds the module to Divi's module library.
	 *
	 * @param object $tree Divi's dependency tree.
	 */
	public static function register( $tree ) {
		if ( is_object( $tree ) && method_exists( $tree, 'add_dependency' ) ) {
			$tree->add_dependency( new Divi\Module() );
		}
	}

	/**
	 * The Visual Builder's script (a plain script, no build): the module's fields, the published modules to pick from,
	 * their pictures. Only in the builder, for people who may edit; the list fills the placeable keys (Placeable).
	 */
	public static function builder_assets() {
		if ( ! function_exists( 'et_core_is_fb_enabled' ) || ! et_core_is_fb_enabled() || ! current_user_can( 'edit_posts' )
			|| ! class_exists( '\ET\Builder\VisualBuilder\Assets\PackageBuildManager' ) ) {
			return;
		}
		\ET\Builder\VisualBuilder\Assets\PackageBuildManager::register_package_build(
			array(
				'name'    => self::SCRIPT,
				'version' => SRANYWHERE_VERSION,
				'script'  => array(
					'src'                => SRANYWHERE_URL . 'divi/builder.js',
					'deps'               => array( 'divi-module-library', 'divi-vendor-wp-hooks' ),
					'enqueue_top_window' => false,
					'enqueue_app_window' => true,
					'data_app_window'    => self::builder_data(),
				),
			)
		);
	}

	/**
	 * What the builder's script needs: the module's description (module.json, one source for both sides), the modules
	 * and pages to pick (published, no modals), the SR mark and the words.
	 *
	 * @return array
	 */
	private static function builder_data() {
		$items = array();
		foreach ( Picker::items() as $item ) {
			$items[] = array(
				'key'   => $item['embedKey'],
				'name'  => $item['name'],
				'kind'  => $item['kind'],
				'thumb' => $item['thumb'],
			);
		}
		$json = file_get_contents( dirname( __DIR__ ) . '/divi/module.json' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- a file of the plugin.
		return array(
			'metadata'  => json_decode( (string) $json, true ),
			'items'     => $items,
			'connected' => Connection::CONNECTED === Connection::current_state(),
			'mark'      => self::mark(),
			'words'     => array(
				'pick'      => __( '— Pick a module —', 'sr-anywhere' ),
				/* translators: %s: the name of an SR Anywhere page (a one-page site). */
				'page'      => __( '%s (page)', 'sr-anywhere' ),
				'empty'     => __( 'Pick a module in the settings.', 'sr-anywhere' ),
				'connect'   => __( 'Connect SR Anywhere first: Settings → SR Anywhere.', 'sr-anywhere' ),
				'onPage'    => __( 'The page shows the module itself.', 'sr-anywhere' ),
				'module'    => __( 'Module', 'sr-anywhere' ),
				'moduleTip' => __( 'A published module or page of the connected SR Anywhere account.', 'sr-anywhere' ),
				'offset'    => __( 'Leave room for (full screen)', 'sr-anywhere' ),
				'offsetTip' => __( 'The CSS selector of the site\'s header, for full-screen modules whose header does not lie over them. The admin bar is left out by itself.', 'sr-anywhere' ),
			),
		);
	}

	/**
	 * The SR mark's path, for the module list's icon.
	 *
	 * @return array `{ viewBox, d }`.
	 */
	private static function mark() {
		$svg = (string) file_get_contents( dirname( __DIR__ ) . '/assets/sr-mark.svg' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- a file of the plugin.
		$box = preg_match( '/viewBox="([0-9. ]+)"/', $svg, $m ) ? $m[1] : '0 0 100 100';
		preg_match_all( '/\sd="([^"]+)"/', $svg, $paths );
		return array(
			'viewBox' => $box,
			'd'       => $paths[1],
		);
	}
}